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/*
* Written by Markus Uhlin <maxxe@rpblc.net>,
* 25 Dec 2023.
*/
#include <cstdio>
#include <cstring>
#include <random>
#include "fics_getsalt.h"
char *
fics_getsalt(void)
{
static bool init_done = false;
static const char legal_index[] =
"./0123456789"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"abcdefghijklmnopqrstuvwxyz";
static char salt[FICS_SALT_SIZE];
if (!init_done) {
strcpy(salt, FICS_SALT_BEG);
init_done = true;
}
std::random_device rd;
std::mt19937 gen(rd());
std::uniform_int_distribution<size_t> dist(0, strlen(legal_index) - 1);
for (size_t i = 7; i < sizeof salt; i++)
salt[i] = legal_index[dist(gen)];
salt[sizeof salt - 1] = '\0';
return (&salt[0]);
}
#if SELF_TEST
int
main(void)
{
puts(fics_getsalt());
puts(fics_getsalt());
puts(fics_getsalt());
return 0;
}
#endif
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